The optimisation of shot peen forming processes
|
|
- Marsha Waters
- 5 years ago
- Views:
Transcription
1 The optimisation of shot peen forming processes T. Wang a, M.J. Platts b, J. Wu c a School of Engineering and Design, Brunel University, Uxbridge UB8 3PH, U. b Department of Engineering, University of Cambridge, Mill Lane, Cambridge, CB2 RX, U.. c Department of Aircraft Manufacturing Engineering, Northestern Polytechnical University, Xi'an, 772, China Abstract An optimisation method based on an effective process model is presented. The calibrated and verified process model simulates peening on realistic components and provides a non-linear relationship beteen peening parameters and deflections. An optimal solution can be found by minimising the deviation of the computed deformed shape from the desired shape subect to certain constraints. This optimal solution of peening parameters can be directly used for practical operations. An optimisation example for forming a cylindrical shape on a mm sample is provided. The experimental results demonstrate the applicability of the present optimisation method. ey ords: Shot peening, (shot) peen forming, optimisation, process model, finite element analysis (FEA). Introduction Bombarding the surface of a metal sheet by a stream of small hard shot ith sufficient kinetic energy can form a specific shape. This process is called (shot) peen forming, hich has been especially used for contouring integral aircraft skin panels. The key problem for peen forming processes is ho to determine an optimal design of peening parameters for the desired shape. Hoever, in practical applications this has been through trial and error. Tatton [] described shot peen forming in production and emphasized the importance of experience. Some numerical methods that are heavily dependent upon tests ere also developed. For example, VanLuchene and Cramer [2] presented a numerical method for predicting peening intensity patterns by assuming the peen forming process as a linear finite element system responding to the peening induced stresses. Empirical equations determined by physical experiments in Boeing Commercial Airplane Group ere relied upon to set up the relationship beteen Corresponding author: address: tao.ang@brunel.ac.uk --
2 the induced stresses and the peening intensity. As recognized in their paper, Homer and VanLuchene [3] stated that the experimental data are based on peening of unconstrained specimens but assumed to be applicable for constrained specimens, hich may introduce error because in reality various constraints, such as geometry, igs (pre-stresses), and peening sequences, are possible. Wang [4] and Wang et al. [5] presented a process model and verified it in various experimental conditions ith different constraints. This model has also been discussed and further developed by Blackell et al. [6] of QinetiQ. Using the calibrated and verified process model, a non-linear relationship beteen the peening parameters and deflection of specified points can be set up. A constrained optimisation procedure can consequently be used to find an optimal solution according to specified deflection. This optimisation method ill be discussed in this paper. 2. The process model Up to a certain intensity of coverage the individual peen impacts can be regarded as acting independently. A number of discrete impacts can therefore be assumed to act simultaneously and their effects are distributed in a specific plastic layer. Based on this assumption, a static loading unit is found to model the macroscopic effect of this shot peening. The loading unit can be conveniently calibrated from the peening parameters, such as shot radius, mass flo rate and air pressure. Realistic peening intensities can then be simulated by multiple application of this loading unit. The number of loading cycles is in direct proportion to the peening time, hich makes the model applicable to practical applications. Each loading cycle includes to steps. In the first step, a temperature profile is applied to the section points through the thickness of composite shell elements in ABAQUS hen all nodal degrees of freedom are fixed. This application of temperature causes the surface layer to be stretched beyond yield, thus mimicking the effect of peening. After the application of this equivalent load to induce a plastic layer, the second step is realised by simply releasing the extra boundary conditions. This leaves the material in a deformed configuration. More details of the model can be found in [4-5]. 3. The experimental approach 3mm thick aluminium 525-H22 sheet as used in the present study. Its proportional limit is about 3MPa, Young s modulus 69GPa and Poisson s ratio.33. Uniaxial tension tests ere conducted to provide the stressstrain relationship for the analysis. Cast steel S66 peens ere employed in an air-blast machine. The mass flo rate as kept as a constant 3.67g/s. The nozzle as kept vertical to the orktable at a distance of 3mm. -2-
3 Unconstrained 2psi peening on mm samples as used for calibration tests. Only the central area 9 9 mm as peened, ith the rest protected by masking, because the distribution of peens ithin this area can be approximated as a uniform distribution for the peening machine being used. Arc height as measured by a digital Almen gauge like the normal Almen test. As a particular example for the optimisation, a cylindrical shape on mm samples ith a curvature radius of 6mm as desired under the experimental conditions. The cylindrical shape as chosen because it provides a challenge, as it is knon that uniform unconstrained peening normally produces a double-curved shape. A digital dial gauge as used to measure the deformed shape on the peened surface. As the sample as not absolutely flat before peening, the measurement as also conducted before peening. The deflection as finally taken as the subtraction of the initial reading from the final one. 4. The optimisation method 4. The assumption In a one-dimensional problem (one peening area and one deflection as the calibration test), it is found that a non-linear relationship at = () b + t beteen the peen-formed arc height and exposure time t can fit both the experimental results and finite element analyses as shon in Fig.. For a multidimensional problem as shon in Fig.2, a similar relationship can be assumed as follos i Ai t = ( i =,2,, n and =,2,, m ) B + t i (2) here t is the exposure time (or a variable hich is in direct proportion to it) on the th peening element only, i the deflection of the ith node, and A i or B i the non-linear fitting coefficients. This assumption implies that the deflection at the ith node can be simply added by the components contributed by each peening element. This might involve certain errors because it is knon that the peening sequence affects the deflection. Hoever, as shon in [5], successively peening on to adacent areas has a variation of about 5% hich is neglectable. or As a convenient means, Eq.(2) can be ritten in the format of matrices t = (3a) -3-
4 n n2 m t 2m t 2 2 = t m n nm (3b) here i t i i = = ( i,2,, n B i A + t = and =,2,, m ). In the physical aspects, it means peening to one unit of t on the th element can produce a deflection of 4.2 The optimisation procedure i at the ith node. For a given desired ŵ, the solution to Eq.(3a) is generally not unique because n might not be equal to m and the components of ŵ might not be independent. Therefore, an optimisation procedure is needed to find an optimal solution t. As a forming process, the most important concern is the accuracy of the formed shape. The optimisation problem can be given as to find an optimal t hich minimises the target function f ( t) = t ˆ (4) subect to specific constraints, for example, t t t l t ˆ inf u εˆ (5) here t l and t u are loer and upper bounds respectively, εˆ is the maximum alloed error. The optimisation procedure can be described as follos, ) Discretise the 2D blank to peening elements and locate the specific nodes for assessing the deformed shape. 2) Determine the shot size and air pressure for the peening machine being used. 3) Conduct FE analysis on each of the peening elements to determine the individual i 4) Assemble the overall matrix. 5) Determine the optimal t subect to Eq.(4) and Eq.(5). 5. Results and discussion For the purpose of forming a cylindrical shape on mm samples ith a curvature radius of 6mm, the 2D shape as shon in Fig.3 is divided to 6 peening elements and 25 nodal points. Only one peening element -4-
5 as peened by masking others in each increment. The hole process as done by incrementally peening all 6 areas. The shot size and air pressure ere set as stated above. Process modelling as correspondingly conducted for a quarter of the model because the sample is symmetric. The computation result for modelling peening on a central area is shon in Fig.4. The overall matrix is assembled according to all FEA results. Referring to Fig.3, for a cylindrical shape ith a curvature radius of 6mm, the component of the desired ŵ at point A and E is mm, point B and D.9 mm, and point C.2 mm as shon in solid lines of Fig.5(a)~(e) for sections ~5. If t l and t u are set to and 6 seconds and εˆ is.47mm, the optimal solution t is shon in Fig.3 for each peening element. According to this optimal solution, the experimental results measured along section ~5 at 25 points are shon in Fig.5. The deviation of the experimental results from the desired shape along sections 2, 3, and 4 is a fe percent, hile sections and 5 have a relatively larger deviation. This could be attributed to the edge effects. It is orth noting that.47mm of εˆ is the minimum error that the optimisation procedure can achieve for this tested case. If εˆ is set to a smaller value, the constraints given by Eq. (5) cannot be satisfied. This indicates that a slight double-curved result cannot be avoided by this unconstrained peening and pre-stressed peening could be further used to shape a more single-curved shape. 6. Conclusion As demonstrated in the present ork, the optimisation method based on the effective process model is able to provide a preliminary optimal design of peening parameters for the desired shape. The process model serves like virtual tests on realistic components and can produce a more accurate simulation than previous models. From the modelling results, a non-linear relationship beteen peening parameters specified for discrete peening areas and deflections specified for nodal points can be set up. On the basis of this relationship, a constrained optimisation procedure can be used to find an optimal solution hich can be directly used for practical operations. Acknoledgement This paper is based on a proect initially carried out in Cambridge University Engineering Department, hich as supported by Airbus U, Cambridge Overseas Trust, and Universities U. -5-
6 References: [] Tatton, R.J.D., Shot peen forming, in Impact Surface Treatment (The Second International Conference on Impact Treatment Processes, Cranfield Institute of Technology, Bedford, U), S.A. Meguid, Editor. 986, Elsevier: London. p [2] VanLuchene, R.D. and Cramer, E.J., Numerical modelling of a ing skin peen forming process. Journal of Materials Engineering and Performance, (6): p [3] Homer, S.E. and VanLuchene, R.D., Aircraft Wing skin contouring by shot peening. Journal of Material Shaping Technology, 99. 9(2): p [4] Wang, T., Numerical simulation and optimisation of shot peen forming processes, PhD Thesis, University of Cambridge, 23. [5] Wang, T., Platts, M.J, and Levers, A., A process model for shot peen forming. Journal of Materials Processing Technology, 26, 72(2): p [6] Blackell, P.L., Griffiths, M.D., Ward, T. and Gardiner, S., A Computer Modelling Capability for Shot Peen Forming, Metal Finishing Nes, vol. 5,
7 Figures.4.35 Almen arc height (mm) Calibration tests Calibration FEA Non-linear fit (a=.63, b=39.5) Exposure time (s) Figure The deflection development of a one-dimensional problem n t t m m n t i t t 2 2 Figure 2 The configuration for a multidimensional problem -7-
8 Sec 5 Sec 4 Sec 3 Sec 2 Sec 9s 6s 6s 9s s 3s 3s s s 3s 3s s 9s 6s 6s 9s A B C D E 76 Figure 3 The configuration for an optimisation example Figure 4 The computation result for modelling shot peening on a central area -8-
9 Deflection (mm).5.5 A B C D E _target sec (a) Deflection (mm).5.5 A B C D E _target sec 2 (b) Deflection (mm).5.5 A B C D E _target sec 3 (c) Deflection (mm).5.5 A B C D E _target sec 4 (d) -9-
10 Deflection (mm).5.5 A B C D E _target sec 5 (e) Figure 5 The comparison of the desired shape and the experimental results --
3D Finite Element Software for Cracks. Version 3.2. Benchmarks and Validation
3D Finite Element Software for Cracks Version 3.2 Benchmarks and Validation October 217 1965 57 th Court North, Suite 1 Boulder, CO 831 Main: (33) 415-1475 www.questintegrity.com http://www.questintegrity.com/software-products/feacrack
More informationCHAPTER 6 EXPERIMENTAL AND FINITE ELEMENT SIMULATION STUDIES OF SUPERPLASTIC BOX FORMING
113 CHAPTER 6 EXPERIMENTAL AND FINITE ELEMENT SIMULATION STUDIES OF SUPERPLASTIC BOX FORMING 6.1 INTRODUCTION Superplastic properties are exhibited only under a narrow range of strain rates. Hence, it
More informationCOLLAPSE LOAD OF PIPE BENDS WITH ASSUMED AND ACTUAL CROSS SECTIONS UNDER IN-PLANE AND OUT-OF-PLANE MOMENTS
VOL., NO., NOVEMBER 6 ISSN 8968 6-6 Asian Research Publishing Network (ARPN). All rights reserved. COLLAPSE LOAD OF PIPE BENDS WITH ASSUMED AND ACTUAL CROSS SECTIONS UNDER IN-PLANE AND OUT-OF-PLANE MOMENTS
More informationExample 24 Spring-back
Example 24 Spring-back Summary The spring-back simulation of sheet metal bent into a hat-shape is studied. The problem is one of the famous tests from the Numisheet 93. As spring-back is generally a quasi-static
More informationModelling Flat Spring Performance Using FEA
Modelling Flat Spring Performance Using FEA Blessing O Fatola, Patrick Keogh and Ben Hicks Department of Mechanical Engineering, University of Corresponding author bf223@bath.ac.uk Abstract. This paper
More informationDEVELOPMENT OF A NUMERICAL MODEL FOR SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR
DEVELOPMENT OF A NUMERICAL MODEL FOR SIMULATIONS OF SPLIT HOPKINSON PRESSURE BAR Afdhal 1, Annisa Jusuf 1, Muhammad Agus Kariem 2 and Leonardo Gunawan 1 1 Lightweight Structures Research Group, Faculty
More informationTOPOLOGY OPTIMIZATION OF WING RIBS IN CESSNA CITATION
TOPOLOGY OPTIMIZATION OF WING RIBS IN CESSNA CITATION [1],Sathiyavani S [2], Arun K K [3] 1,2 student, 3 Assistant professor Kumaraguru College of technology, Coimbatore Abstract Structural design optimization
More informationCHAPTER 4. Numerical Models. descriptions of the boundary conditions, element types, validation, and the force
CHAPTER 4 Numerical Models This chapter presents the development of numerical models for sandwich beams/plates subjected to four-point bending and the hydromat test system. Detailed descriptions of the
More informationStep Change in Design: Exploring Sixty Stent Design Variations Overnight
Step Change in Design: Exploring Sixty Stent Design Variations Overnight Frank Harewood, Ronan Thornton Medtronic Ireland (Galway) Parkmore Business Park West, Ballybrit, Galway, Ireland frank.harewood@medtronic.com
More informationCOMPUTER AIDED ENGINEERING. Part-1
COMPUTER AIDED ENGINEERING Course no. 7962 Finite Element Modelling and Simulation Finite Element Modelling and Simulation Part-1 Modeling & Simulation System A system exists and operates in time and space.
More informationStiffness Analysis of the Tracker Support Bracket and Its Bolt Connections
October 25, 2000 Stiffness Analysis of the Tracker Support Bracket and Its Bolt Connections Tommi Vanhala Helsinki Institute of Physics 1. INTRODUCTION...2 2. STIFFNESS ANALYSES...2 2.1 ENVELOPE...2 2.2
More informationRAPID PROTOTYPING FOR SLING DESIGN OPTIMIZATION
RAPID PROTOTYPING FOR SLING DESIGN OPTIMIZATION Zaimović-Uzunović, N. * ; Lemeš, S. ** ; Ćurić, D. *** ; Topčić, A. **** * University of Zenica, Fakultetska 1, 72000 Zenica, Bosnia and Herzegovina, nzaimovic@mf.unze.ba
More informationModule 1: Introduction to Finite Element Analysis. Lecture 4: Steps in Finite Element Analysis
25 Module 1: Introduction to Finite Element Analysis Lecture 4: Steps in Finite Element Analysis 1.4.1 Loading Conditions There are multiple loading conditions which may be applied to a system. The load
More informationME Optimization of a Frame
ME 475 - Optimization of a Frame Analysis Problem Statement: The following problem will be analyzed using Abaqus. 4 7 7 5,000 N 5,000 N 0,000 N 6 6 4 3 5 5 4 4 3 3 Figure. Full frame geometry and loading
More informationMeta-model based optimization of spot-welded crash box using differential evolution algorithm
Meta-model based optimization of spot-welded crash box using differential evolution algorithm Abstract Ahmet Serdar Önal 1, Necmettin Kaya 2 1 Beyçelik Gestamp Kalip ve Oto Yan San. Paz. ve Tic. A.Ş, Bursa,
More informationANSYS AIM Tutorial Stepped Shaft in Axial Tension
ANSYS AIM Tutorial Stepped Shaft in Axial Tension Author(s): Sebastian Vecchi, ANSYS Created using ANSYS AIM 18.1 Contents: Problem Specification 3 Learning Goals 4 Pre-Analysis & Start Up 5 Calculation
More informationMODELLING OF AN AUTOMOBILE TYRE USING LS-DYNA3D
MODELLING OF AN AUTOMOBILE TYRE USING LS-DYNA3D W. Hall, R. P. Jones, and J. T. Mottram School of Engineering, University of Warwick, Coventry, CV4 7AL, UK ABSTRACT: This paper describes a finite element
More informationANSYS AIM Tutorial Structural Analysis of a Plate with Hole
ANSYS AIM Tutorial Structural Analysis of a Plate with Hole Author(s): Sebastian Vecchi, ANSYS Created using ANSYS AIM 18.1 Problem Specification Pre-Analysis & Start Up Analytical vs. Numerical Approaches
More informationRevised Sheet Metal Simulation, J.E. Akin, Rice University
Revised Sheet Metal Simulation, J.E. Akin, Rice University A SolidWorks simulation tutorial is just intended to illustrate where to find various icons that you would need in a real engineering analysis.
More informationIJMH - International Journal of Management and Humanities ISSN:
EXPERIMENTAL STRESS ANALYSIS SPUR GEAR USING ANSYS SOFTWARE T.VADIVELU 1 (Department of Mechanical Engineering, JNTU KAKINADA, Kodad, India, vadimay28@gmail.com) Abstract Spur Gear is one of the most important
More informationCHAPTER 8 FINITE ELEMENT ANALYSIS
If you have any questions about this tutorial, feel free to contact Wenjin Tao (w.tao@mst.edu). CHAPTER 8 FINITE ELEMENT ANALYSIS Finite Element Analysis (FEA) is a practical application of the Finite
More informationMAE 323: Lab 7. Instructions. Pressure Vessel Alex Grishin MAE 323 Lab Instructions 1
Instructions MAE 323 Lab Instructions 1 Problem Definition Determine how different element types perform for modeling a cylindrical pressure vessel over a wide range of r/t ratios, and how the hoop stress
More informationAnalysis of Fluid-Structure Interaction Effects of Liquid-Filled Container under Drop Testing
Kasetsart J. (Nat. Sci.) 42 : 165-176 (2008) Analysis of Fluid-Structure Interaction Effects of Liquid-Filled Container under Drop Testing Chakrit Suvanjumrat*, Tumrong Puttapitukporn and Satjarthip Thusneyapan
More informationTHE EFFECT OF THE FREE SURFACE ON THE SINGULAR STRESS FIELD AT THE FATIGUE CRACK FRONT
Journal of MECHANICAL ENGINEERING Strojnícky časopis, VOL 67 (2017), NO 2, 69-76 THE EFFECT OF THE FREE SURFACE ON THE SINGULAR STRESS FIELD AT THE FATIGUE CRACK FRONT OPLT Tomáš 1,2, POKORNÝ Pavel 2,
More informationCHAPTER-10 DYNAMIC SIMULATION USING LS-DYNA
DYNAMIC SIMULATION USING LS-DYNA CHAPTER-10 10.1 Introduction In the past few decades, the Finite Element Method (FEM) has been developed into a key indispensable technology in the modeling and simulation
More informationA MODELING METHOD OF CURING DEFORMATION FOR CFRP COMPOSITE STIFFENED PANEL WANG Yang 1, GAO Jubin 1 BO Ma 1 LIU Chuanjun 1
21 st International Conference on Composite Materials Xi an, 20-25 th August 2017 A MODELING METHOD OF CURING DEFORMATION FOR CFRP COMPOSITE STIFFENED PANEL WANG Yang 1, GAO Jubin 1 BO Ma 1 LIU Chuanjun
More informationEXACT BUCKLING SOLUTION OF COMPOSITE WEB/FLANGE ASSEMBLY
EXACT BUCKLING SOLUTION OF COMPOSITE WEB/FLANGE ASSEMBLY J. Sauvé 1*, M. Dubé 1, F. Dervault 2, G. Corriveau 2 1 Ecole de technologie superieure, Montreal, Canada 2 Airframe stress, Advanced Structures,
More informationCOMPLIANCE MODELLING OF 3D WEAVES
6 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS COMPLIANCE MODELLING OF 3D WEAVES Prasad Potluri *, Andrew Long **, Robert J Young *, Hua Lin **, Yat-Tarng Shyng *, A Manan * * School of Materials,
More informationA Multiple Constraint Approach for Finite Element Analysis of Moment Frames with Radius-cut RBS Connections
A Multiple Constraint Approach for Finite Element Analysis of Moment Frames with Radius-cut RBS Connections Dawit Hailu +, Adil Zekaria ++, Samuel Kinde +++ ABSTRACT After the 1994 Northridge earthquake
More informationNon-Linear Analysis of Bolted Flush End-Plate Steel Beam-to-Column Connection Nur Ashikin Latip, Redzuan Abdulla
Non-Linear Analysis of Bolted Flush End-Plate Steel Beam-to-Column Connection Nur Ashikin Latip, Redzuan Abdulla 1 Faculty of Civil Engineering, Universiti Teknologi Malaysia, Malaysia redzuan@utm.my Keywords:
More informationENGINEERING TRIPOS PART IIA FINITE ELEMENT METHOD
ENGINEERING TRIPOS PART IIA LOCATION: DPO EXPERIMENT 3D7 FINITE ELEMENT METHOD Those who have performed the 3C7 experiment should bring the write-up along to this laboratory Objectives Show that the accuracy
More informationSome Aspects for the Simulation of a Non-Linear Problem with Plasticity and Contact
Some Aspects for the Simulation of a Non-Linear Problem with Plasticity and Contact Eduardo Luís Gaertner Marcos Giovani Dropa de Bortoli EMBRACO S.A. Abstract A linear elastic model is often not appropriate
More informationApplication of a FEA Model for Conformability Calculation of Tip Seal in Compressor
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Application of a FEA Model for Conformability Calculation of Tip Seal in Compressor
More informationComputer Life (CPL) ISSN: Finite Element Analysis of Bearing Box on SolidWorks
Computer Life (CPL) ISSN: 1819-4818 Delivering Quality Science to the World Finite Element Analysis of Bearing Box on SolidWorks Chenling Zheng 1, a, Hang Li 1, b and Jianyong Li 1, c 1 Shandong University
More informationPrint Depth Prediction in Hot Forming Process with a Reconfigurable Die
Print Depth Prediction in Hot Forming Process with a Reconfigurable Die Jonathan Boisvert* Thibaut Bellizzi* Henri Champliaud Patrice Seers École de Technologie supérieure, Montréal, Québec *Master students,
More informationExercise 1. 3-Point Bending Using the GUI and the Bottom-up-Method
Exercise 1 3-Point Bending Using the GUI and the Bottom-up-Method Contents Learn how to... 1 Given... 2 Questions... 2 Taking advantage of symmetries... 2 A. Preprocessor (Setting up the Model)... 3 A.1
More informationArtificial Finger Skin having Ridges and Distributed Tactile Sensors used for Grasp Force Control
Journal of Robotics and Mechatronics Vol., No.,. Artificial Finger Skin having Ridges and Distributed Tactile Sensors used for Grasp Force Control Daisuke Yamada, Takashi Maeno and Yoji Yamada Abstract
More informationAlmen Response with Strain rate effects
Almen Response with Strain rate effects Baskaran Bhuvaraghan a,, Sivakumar M.Srinivasan b, Bob Maffeo c a GE Aviation, Bangalore-560066, India b Department of Applied Mechanics, IIT Madras, Chennai-600036,
More informationDETECTION AND QUANTIFICATION OF CRACKS IN PRESSURE VESSELS USING ESPI AND FEA MODELLS
DETECTION AND QUANTIFICATION OF CRACKS IN PRESSURE VESSELS USING ESPI AND FEA MODELLS J GRYZAGORIDIS, DM FINDEIS, JR MYLES Department of Mechanical Engineering University of Cape Town Abstract Non destructive
More informationInfluence of geometric imperfections on tapered roller bearings life and performance
Influence of geometric imperfections on tapered roller bearings life and performance Rodríguez R a, Calvo S a, Nadal I b and Santo Domingo S c a Computational Simulation Centre, Instituto Tecnológico de
More informationANSYS Workbench Guide
ANSYS Workbench Guide Introduction This document serves as a step-by-step guide for conducting a Finite Element Analysis (FEA) using ANSYS Workbench. It will cover the use of the simulation package through
More informationOffshore Platform Fluid Structure Interaction (FSI) Simulation
Offshore Platform Fluid Structure Interaction (FSI) Simulation Ali Marzaban, CD-adapco Murthy Lakshmiraju, CD-adapco Nigel Richardson, CD-adapco Mike Henneke, CD-adapco Guangyu Wu, Chevron Pedro M. Vargas,
More informationScienceDirect. Vibration Response Prediction of the Printed Circuit Boards using Experimentally Validated Finite Element Model
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 144 (2016 ) 576 583 12th International Conference on Vibration Problems, ICOVP 2015 Vibration Response Prediction of the Printed
More informationAn explicit feature control approach in structural topology optimization
th World Congress on Structural and Multidisciplinary Optimisation 07 th -2 th, June 205, Sydney Australia An explicit feature control approach in structural topology optimization Weisheng Zhang, Xu Guo
More informationAn Introduction to Tolerance Analysis of Flexible Assemblies
An Introduction to Tolerance Analysis of Flexible Assemblies K. G. Merkley, K. W. Chase, E. Perry Brigham Young University Provo, UT Abstract Tolerance analysis is used to predict the effects of manufacturing
More informationNUMERICAL DESIGN OPTIMISATION OF A COMPOSITE REACTION LINK
THE 19 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS NUMERICAL DESIGN OPTIMISATION OF A COMPOSITE REACTION LINK Y. Yang*, C. Schuhler, T. London, C. Worrall TWI Ltd, Granta Park, Cambridge CB21 6AL
More informationFEA and Multivariate Statistical Data Analysis of Polypropylene Tube Forming Process
FEA and Multivariate Statistical Data Analysis of Polypropylene ube Forming Process Galini Gavrilidou, Mukesh Jain Department of Mechanical Engineering, McMaster University, Hamilton, On, LS L7, Canada
More informationInverse Analysis of Soil Parameters Based on Deformation of a Bank Protection Structure
Inverse Analysis of Soil Parameters Based on Deformation of a Bank Protection Structure Yixuan Xing 1, Rui Hu 2 *, Quan Liu 1 1 Geoscience Centre, University of Goettingen, Goettingen, Germany 2 School
More informationStudy of Convergence of Results in Finite Element Analysis of a Plane Stress Bracket
RESEARCH ARTICLE OPEN ACCESS Study of Convergence of Results in Finite Element Analysis of a Plane Stress Bracket Gowtham K L*, Shivashankar R. Srivatsa** *(Department of Mechanical Engineering, B. M.
More informationME 475 FEA of a Composite Panel
ME 475 FEA of a Composite Panel Objectives: To determine the deflection and stress state of a composite panel subjected to asymmetric loading. Introduction: Composite laminates are composed of thin layers
More informationAvailable online at ScienceDirect. Procedia Engineering 183 (2017 )
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 183 (2017 ) 369 374 17th International Conference on Sheet Metal, SHEMET17 Reverse analysis of scan strategies for controlled
More informationCHAPTER 7 SIMULATIONS OF EXPERIMENTAL WORK PERFORMED ON COMPOSITE SPECIMENS BY USING ANSYS
275 CHAPTER 7 SIMULATIONS OF EXPERIMENTAL WORK PERFORMED ON COMPOSITE SPECIMENS BY USING ANSYS 7.1 INTRODUCTION 275 7.2 EXPERIMENTAL CONFIGURATIONS 275 7.2.1 Tensile Test 275 7.2.2 Compression Test 278
More informationRecent Advances on Higher Order 27-node Hexahedral Element in LS-DYNA
14 th International LS-DYNA Users Conference Session: Simulation Recent Advances on Higher Order 27-node Hexahedral Element in LS-DYNA Hailong Teng Livermore Software Technology Corp. Abstract This paper
More informationConfiguration Optimization of Anchoring Devices of Frame-Supported Membrane Structures for Maximum Clamping Force
6 th China Japan Korea Joint Symposium on Optimization of Structural and Mechanical Systems June 22-25, 200, Kyoto, Japan Configuration Optimization of Anchoring Devices of Frame-Supported Membrane Structures
More informationThe Dynamic Response of an Euler-Bernoulli Beam on an Elastic Foundation by Finite Element Analysis using the Exact Stiffness Matrix
Journal of Physics: Conference Series The Dynamic Response of an Euler-Bernoulli Beam on an Elastic Foundation by Finite Element Analysis using the Exact Stiffness Matrix To cite this article: Jeong Soo
More informationTHE COMPUTATIONAL MODEL INFLUENCE ON THE NUMERICAL SIMULATION ACCURACY FOR FORMING ALLOY EN AW 5754
THE COMPUTATIONAL MODEL INFLUENCE ON THE NUMERICAL SIMULATION ACCURACY FOR FORMING ALLOY EN AW 5754 Pavel SOLFRONK a, Jiří SOBOTKA a, Pavel DOUBEK a, Lukáš ZUZÁNEK a a TECHNICAL UNIVERSITY OF LIBEREC,
More informationApplication of Predictive Engineering Tool (ABAQUS) to Determine Optimize Rubber Door Harness Grommet Design
Application of Predictive Engineering Tool (ABAQUS) to Determine Optimize Rubber Door Harness Grommet Design Praveen Mishra, Dayananda Gowda Mercedes Benz R & D India, Bangalore, Karnataka, India Abstract:
More informationFinal project: Design problem
ME309 Homework #5 Final project: Design problem Select one of the analysis problems listed below to solve. Your solution, along with a description of your analysis process, should be handed in as a final
More informationANSYS Element. elearning. Peter Barrett October CAE Associates Inc. and ANSYS Inc. All rights reserved.
ANSYS Element Selection elearning Peter Barrett October 2012 2012 CAE Associates Inc. and ANSYS Inc. All rights reserved. ANSYS Element Selection What is the best element type(s) for my analysis? Best
More informationTechnical Report Example (1) Chartered (CEng) Membership
Technical Report Example (1) Chartered (CEng) Membership A TECHNICAL REPORT IN SUPPORT OF APPLICATION FOR CHARTERED MEMBERSHIP OF IGEM DESIGN OF 600 (103 BAR) 820MM SELF SEALING REPAIR CLAMP AND VERIFICATION
More informationRELIABILITY OF THE FEM CALCULATIONS OF THE FRACTURE MECHANICS PARAMETERS
International Conference on Economic Engineering and Manufacturing Systems Braşov, 26 27 November 2009 RELIABILITY OF THE FEM CALCULATIONS OF THE FRACTURE MECHANICS PARAMETERS Galina TODOROVA, Valentin
More informationKrzysztof Dabrowiecki, Probe2000 Inc Southwest Test Conference, San Diego, CA June 08, 2004
Structural stability of shelf probe cards Krzysztof Dabrowiecki, Probe2000 Inc Southwest Test Conference, San Diego, CA June 08, 2004 Presentation Outline Introduction Objectives Multi die applications
More informationCutting Force Simulation of Machining with Nose Radius Tools
International Conference on Smart Manufacturing Application April. 9-11, 8 in KINTEX, Gyeonggi-do, Korea Cutting Force Simulation of Machining with Nose Radius Tools B. Moetakef Imani 1 and N. Z.Yussefian
More informationINTEGRATED ANISOTROPIC SIMULATION FOR COMPONENTS MADE FROM GLASS FIBER REINFORCED THERMOPLASTICS
INTEGRATED ANISOTROPIC SIMULATION FOR COMPONENTS MADE FROM GLASS FIBER REINFORCED THERMOPLASTICS David Sheridan Ticona, Auburn Hills, Michigan Ulrich Mohr-Matuschek & Anton Grzeschik Ticona, Sulzbach,
More informationCHAPTER 7 BEHAVIOUR OF THE COMBINED EFFECT OF ROOFING ELEMENTS
CHAPTER 7 BEHAVIOUR OF THE COMBINED EFFECT OF ROOFING ELEMENTS 7.1 GENERAL An analytical study on behaviour of combined effect of optimised channel sections using ANSYS was carried out and discussed in
More informationA Finite Element Approach for Analysis of a Multi Leaf Spring using CAE Tools
Research Journal of Recent Sciences ISSN 2277-2502 Res.J.Recent Sci. A Finite Element Approach for Analysis of a Multi Leaf Spring using CAE Tools Abstract Kumar Krishan and Aggarwal M.L. Department of
More informationFINITE ELEMENT ANALYSIS (FEA) OF A C130 TOWING BAR
FINITE ELEMENT ANALYSIS (FEA) OF A C130 TOWING BAR Fadzli Ibrahim* & Mohammad Shafiq Toha Mechanical & Aerospace Technology Division (BTJA), Science & Technology Research Institute for Defence (STRIDE),
More informationChapter 1 Introduction
Chapter 1 Introduction GTU Paper Analysis (New Syllabus) Sr. No. Questions 26/10/16 11/05/16 09/05/16 08/12/15 Theory 1. What is graphic standard? Explain different CAD standards. 2. Write Bresenham s
More informationChapter 3 Analysis of Original Steel Post
Chapter 3. Analysis of original steel post 35 Chapter 3 Analysis of Original Steel Post This type of post is a real functioning structure. It is in service throughout the rail network of Spain as part
More informationDesign Optimization of Robotic Arms
Design Optimization of Robotic Arms 1. Prof. L. S Utpat Professor, Mechanical Engineering Dept., MMCOE, Pune -52 Pune University, Maharashtra, India 2. Prof. Chavan Dattatraya K Professor, Mechanical Engineering
More informationStatic And Modal Analysis Of Rotating Wheel Rim Using Ansys
International Journal of Engineering Science Invention ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 3 Issue 9 ǁ September 2014 ǁ PP.18-23 Static And Modal Analysis Of Rotating Wheel Rim Using
More informationMixed Mode Fracture of Through Cracks In Nuclear Reactor Steam Generator Helical Coil Tube
Journal of Materials Science & Surface Engineering Vol. 3 (4), 2015, pp 298-302 Contents lists available at http://www.jmsse.org/ Journal of Materials Science & Surface Engineering Mixed Mode Fracture
More informationGlobal to Local Model Interface for Deepwater Top Tension Risers
Global to Local Model Interface for Deepwater Top Tension Risers Mateusz Podskarbi Karan Kakar 2H Offshore Inc, Houston, TX Abstract The water depths from which oil and gas are being produced are reaching
More informationLinear and Nonlinear Analysis of a Cantilever Beam
LESSON 1 Linear and Nonlinear Analysis of a Cantilever Beam P L Objectives: Create a beam database to be used for the specified subsequent exercises. Compare small vs. large displacement analysis. Linear
More informationShape optimization of free-form shells consisting of developable surfaces
26 30 September, 2016, Tokyo, Japan K. Kawaguchi, M. Ohsaki, T. Takeuchi (eds.) Shape optimization of free-form shells consisting of developable surfaces Kengo NAKAMURA*, Makoto OHSAKI a, Jinglan CUI b
More informationValidation Report: Additional Data Mapping to Structural Analysis Packages
Autodesk Moldflow Structural Alliance 2012 Validation Report: Additional Data Mapping to Structural Analysis Packages Mapping process-induced stress data from Autodesk Moldflow Insight Dual Domain and
More informationTWO-DIMENSIONAL PROBLEM OF THE THEORY OF ELASTICITY. INVESTIGATION OF STRESS CONCENTRATION FACTORS.
Ex_1_2D Plate.doc 1 TWO-DIMENSIONAL PROBLEM OF THE THEORY OF ELASTICITY. INVESTIGATION OF STRESS CONCENTRATION FACTORS. 1. INTRODUCTION Two-dimensional problem of the theory of elasticity is a particular
More informationA New Way for Multi-piece and Multi-hit Fragment Impact Simulation Using LS-DYNA
9 th International LS-DYNA Users Conference Impact Analysis (1) A New Way for Multi-piece and Multi-hit Fragment Impact Simulation Using LS-DYNA Xudong Xin Karagozian and Case 255 N. Hollywood Way, Suite
More informationManual for Computational Exercises
Manual for the computational exercise in TMM4160 Fracture Mechanics Page 1 of 32 TMM4160 Fracture Mechanics Manual for Computational Exercises Version 3.0 Zhiliang Zhang Dept. of Structural Engineering
More informationEffect of Fillet on the Resolution of a Four-Axis Force/Torque Sensor
Effect of Fillet on the Resolution of a Four-Axis Force/Torque Sensor Mohammad Hosein Tashakori Heravi, Alireza Akbarzadeh, Amin Valizadeh Center of Excellence on Soft Computing and Intelligent Information
More informationWorkshop 15. Single Pass Rolling of a Thick Plate
Introduction Workshop 15 Single Pass Rolling of a Thick Plate Rolling is a basic manufacturing technique used to transform preformed shapes into a form suitable for further processing. The rolling process
More informationOptimizing the Utility Scale Solar Megahelion Drive End-Cap (Imperial Units)
Autodesk Inventor Tutorial Exercise Optimizing the Utility Scale Solar Megahelion Drive End-Cap www.autodesk.com/sustainabilityworkshop Contents OPTIMIZING THE USS SOLAR TRACKING END CAP... 3 OBJECTIVE...
More informationEffectiveness of Element Free Galerkin Method over FEM
Effectiveness of Element Free Galerkin Method over FEM Remya C R 1, Suji P 2 1 M Tech Student, Dept. of Civil Engineering, Sri Vellappaly Natesan College of Engineering, Pallickal P O, Mavelikara, Kerala,
More informationWeld Seam Detection using Computer Vision for Robotic Arc Welding
8th IEEE International Conference on Automation Science and Engineering August 0-4, 01, Seoul, Korea Weld Seam Detection using Computer Vision for Robotic Arc Welding Mitchell Dinham and Gu Fang, Member,
More informationIntroduction to Finite Element Analysis using ANSYS
Introduction to Finite Element Analysis using ANSYS Sasi Kumar Tippabhotla PhD Candidate Xtreme Photovoltaics (XPV) Lab EPD, SUTD Disclaimer: The material and simulations (using Ansys student version)
More informationStress Analysis of thick wall bellows using Finite Element Method
Stress Analysis of thick wall bellows using Finite Element Method Digambar J. Pachpande Post Graduate Student Department of Mechanical Engineering V.J.T.I. Mumbai, India Prof. G. U. Tembhare Assistant
More informationOn-line and off-line wheel/rail contact algorithm in the analysis of multibody railroad vehicle systems
Journal of Mechanical Science and Technology 23 (2009) 99~996 Journal of Mechanical Science and Technology.springerlink.com/content/738-494x DOI 0.007/s2206-009-0327-2 On-line and off-line heel/rail contact
More informationEfficient Shape Optimisation of an Aircraft Landing Gear Door Locking Mechanism by Coupling Abaqus to GENESIS
Efficient Shape Optimisation of an Aircraft Landing Gear Door Locking Mechanism by Coupling Abaqus to GENESIS Mark Arnold and Martin Gambling Penso Consulting Ltd GRM Consulting Ltd Abstract: The objective
More informationIdentification of strain-rate sensitivity parameters of steel sheet by genetic algorithm optimisation
High Performance Structures and Materials III Identification of strain-rate sensitivity parameters of steel sheet by genetic algorithm optimisation G. Belingardi, G. Chiandussi & A. Ibba Dipartimento di
More informationFINITE ELEMENT MODELLING OF A TURBINE BLADE TO STUDY THE EFFECT OF MULTIPLE CRACKS USING MODAL PARAMETERS
Journal of Engineering Science and Technology Vol. 11, No. 12 (2016) 1758-1770 School of Engineering, Taylor s University FINITE ELEMENT MODELLING OF A TURBINE BLADE TO STUDY THE EFFECT OF MULTIPLE CRACKS
More informationUsing three-dimensional CURVIC contact models to predict stress concentration effects in an axisymmetric model
Boundary Elements XXVII 245 Using three-dimensional CURVIC contact models to predict stress concentration effects in an axisymmetric model J. J. Rencis & S. R. Pisani Department of Mechanical Engineering,
More informationHow to Achieve Quick and Accurate FE Solution Small Radius Removal and Element Size
How to Achieve Quick and Accurate FE Solution Small Radius Removal and Element Size Zhichao Wang - Sr. Lead Engineer Don Draper - Manager Jianxiong Chen Sr. Engineering Specialist Applied Mechanics Dept.,
More informationFinite Element Course ANSYS Mechanical Tutorial Tutorial 4 Plate With a Hole
Problem Specification Finite Element Course ANSYS Mechanical Tutorial Tutorial 4 Plate With a Hole Consider the classic example of a circular hole in a rectangular plate of constant thickness. The plate
More informationProblem description. Prescribed. force. Unit thickness, plane stress. Transverse direction. Prescribed. displacement. Longitudinal direction
Problem description Two desirable features in a material model are: 1) the ability to reproduce experimental data in an analysis that corresponds to the experiment and 2) that the material model be stable
More informationCase Study- Importing As-Molded Plastic Part Conditions into CAE tools
1 IEI Innova Engineering 1 Park Plaza Suite 980 Irvine, California 92614 Case Study- Importing As-Molded Plastic Part Conditions into CAE tools 2 CONTENTS CONTENTS... 2 EXECUTIVE SUMMARY... 3 APPROACH...
More informationFatigue Crack Growth Simulation using S-version FEM
Copyright c 2008 ICCES ICCES, vol.8, no.2, pp.67-72 Fatigue Crack Growth Simulation using S-version FEM M. Kikuchi 1,Y.Wada 2, A. Utsunomiya 3 and Y. Li 4 Summary Fatigue crack growth under mixed mode
More informationAn Algorithm for the Welding Torch Weaving Control of Arc Welding Robot
http://dx.doi.org/0.5755/j0.eee.2.2.599 ELEKTRONIKA IR ELEKTROTECHNIKA, ISSN 392-25, VOL. 2, NO. 2, 205 An Algorithm for the Welding Torch Weaving Control of Arc Welding Robot Wen-liang Zhu, Fu-sheng Ni
More informationDesign and development of optimized sprocket for Track hoe
Design and development of optimized sprocket for Track hoe Mr. Laxmikant P.Sutar 1, Prof. Prashant.G. Karajagi 2, Prof. Rahul Kulkarni 3 1 PG Student, Siddhant College of Engineering, Pune, India 2 Assistant
More informationFINITE ELEMENT MODELLING AND ANALYSIS OF WORKPIECE-FIXTURE SYSTEM
FINITE ELEMENT MODELLING AND ANALYSIS OF WORKPIECE-FIXTURE SYSTEM N. M. KUMBHAR, G. S. PATIL, S. S. MOHITE & M. A. SUTAR Dept. of Mechanical Engineering, Govt. College of Engineering, Karad, Dist- Satara,
More informationDie Wear Profile Investigation in Hot Forging
Die Wear Profile Investigation in Hot Forging F. R. Biglari, M Zamani Abstract In this study, the wear profile on the die surface during the hot forging operation for an axisymmetric cross-section is examined.
More information